Visit Wat Maha Wanaram, also known as Wat Pa Yai, which is the first Maha Nikaya temple in the province, to pay homage to Prachao Yai In Plaeng, one of the most highly revered Buddha images of Ubon Ratchathani.
Crafted in 1807 in the Laotian style, Prachao Yai In Plaeng is a stucco Buddha image covered with gold leaf, measuring 3 metres wide across the lap and 5 metres high in the subduing Mara position. The temple also houses 7 ancient sandstone inscriptions, in which one of them detailed the history of the construction of the temple and Phrachao Yai In Plaeng. A visit on the full moon day of the 5th lunar month, which usually falls in April, enables visitors to join in the annual celebration that is held to honour Prachao Yai In Plaeng.